In DxD with Sign-In System!

~ Thank you all very much for the support :)

<><><><><><>

But I wasn't paying attention to the girls' exclamations and astonishment. My focus was entirely on Kiba.

I smiled, a surge of excitement running through me. "You're really strong, Kiba-san! This match has really gotten my blood pumping! In that case, I have no choice but to go all out!"

"I feel the same way, Hibari-san. Fighting you is truly exhilarating!"

Kiba's face also bore a smile. He hadn't faced such a challenging opponent in a long time.

Without another word, I launched my attack. The force of my Aura felt like a small mountain pressing down on him!

As Kiba recovered under the intense pressure, he saw the black energy radiating from Zangetsu, almost seeming to ignite the air around it!

Suddenly, I wrapped the white cloth around Zangetsu's hilt and began to spin it like a propeller, then whoosh, I flung it forward.

Seeing Zangetsu flying towards him, Kiba was momentarily surprised that I could attack like this. But he quickly recovered and swung his demonic sword, knocking Zangetsu away with a horizontal slash.

Just as Kiba was preparing to counterattack, I pulled Zangetsu back with the cloth and continued to spin it, attacking him again.

This time, the attacks were like a raging storm, the blade whistling through the air, sharp and relentless.

Faced with such a violent onslaught, Kiba could only defend, desperately parrying with his demonic sword.

In the blink of an eye, several tears appeared on Kiba's school uniform. He was panting heavily, sweat dripping from his forehead.

He gritted his teeth, struggling to withstand the continuous barrage of attacks, his body swaying as if he might collapse at any moment.

After deflecting Zangetsu once more, we both stopped, creating some distance. Unlike me, who stood calmly, single-handedly spinning my Zanpakuto, Kiba was breathing heavily, his chest heaving, and cold sweat dripping from his forehead. He was barely able to stand.

The onlooking girls were stunned into silence. They had never imagined that Kiba, who was so strong in their eyes, would be pushed to such a state.

"Kiba-san, it's time to bring this match to an end."

My voice was full of confidence.

"The battle will be over in an instant, so please be very careful, Kiba-san. Here—I—come!!"

As soon as I finished speaking, Kiba narrowed his eyes, his pupils contracting, focusing intently on me from a distance.

He held his breath, his gaze fixed on me, as if mirroring a crimson reflection. He was completely alert to my movements.

In the silence, his heartbeat became clearer and more powerful. A gentle breeze blew past, bringing a refreshing coolness that cleared the mind. The girls held their breath, watching us face off.

With a whoosh, I vanished from their sight.

Then, like a phantom, I reappeared behind Kiba.

"What!!?"

Kiba's face froze as he saw me appear behind him like a ghost.

Without time to think, Kiba instinctively swung his demonic sword backward, trying to force me away.

But just as he was about to counter, a cold sensation touched his neck, and a strand of hair slowly drifted down from his head.

The victor had been decided!!

"Im-impossible!?"

"Th-this is unbelievable!"

"..."

Rias and the others were too shocked to speak.

Kiba's strength was undoubtedly that of a Peak Mid-class! He was just a step away from breaking through to High-class.

And based on my performance so far, Rias estimated that I was probably around the level of a Peak Low-class or maybe just entering Mid-class.

But the fact remained that I had used my sword to cut a strand of Kiba's hair and subdued him!!

She racked her brains but couldn't figure out how. After pondering for a few seconds, Rias hesitantly spoke.

"Kyoya-kun, was that… space magic!?"

The expressions on Rias and the others' faces were a mixture of shock and disbelief at the power and trump cards I had revealed.

Even the emotionless Koneko, stared at me with a complicated expression, not knowing what to say.

Kiba stared at me in astonishment for a long moment, then let out a bitter laugh, his eyes filled with respect.

"You really have a lot of tricks up your sleeve, Hibari-san. It's truly surprising... But tell me, was that final teleporting move some kind of unknown Sacred Gear or magic?"

Hearing Kiba ask this question again, Rias and the others also looked at me expectantly, waiting for my answer.

I smiled wryly. I wished I had a space-type Sacred Gear or magic, but the system hadn't provided me with one. But I still smiled and explained.

"Not really. It's just a type of Space–Time Ninjutsu that requires a marked target, the [Flying Thunder God Technique]. You can see the mark on Kiba-san."

"..."

"..."

Rias sighed softly.

She had heard of the Ninja Arts from the East. She had been surprised by his high-level swordsmanship and close combat.

Who would have thought he had a space ninjutsu as a hidden card...?

His true nature was becoming more and more of a mystery...

"Ara ara~~ Kyoya-kun, you're being naughty again, hiding things like Ninjutsu from us..."

Akeno's eyes darted playfully, a mischievous glint in them.

Then, she turned her seductive body towards Rias and asked.

"Rias, I bet that based on Kyoya-kun's track record, he's definitely hiding even more secret trump cards! Don't you think so?"

"Yes... I have the same feeling."

Rias spoke softly, her gaze fixed on me, her desire to make me her peerage member growing stronger...

Feeling Rias's burning gaze, I felt a little uneasy. Although it was flattering to be stared at by a beautiful, busty girl, knowing Rias's intentions made me a little nervous.

But on the bright side, I had completed the task of defeating Kiba. I wondered what kind of reward I would receive this time...

"Ding! Defeated Kiba Yuuto. Reward: Mid-class Peak Physique and Magic Power Enhancement Card."

Hearing the system's voice, I paused. As if the system knew exactly what I needed. What I lacked most right now was magic power and physical strength.

Although I had some decent wide-range AOE attacks and close combat abilities, without sufficient magic power, I couldn't truly unleash the power of Zangetsu and the Rumble-Rumble Fruit. Similarly, I lacked the stamina for prolonged battles.

This reward was exactly what I needed!!

<><><><><><>

~ Every 300 PS = Bonus Chapter!

~ If you like the story, please leave a review!

~ Push the Story forward with your [Power Stones]